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Ultracold sodium atoms, prepared in a false vacuum state (blue), decay to the true vacuum (red) through the formation of bubbles".
Research highlight
12/03/2024

Bubbles of ultracold atoms to understand the quantum vacuum and the universe

In which kind of vacuum is our universe? Modern physics describes our universe as an intricate outcome of the interactio...

Atom-based Quantum Research
a) Sample fabrication. A thick silicon on insulator (SOI) sample is implanted with carbon ions and recrystallized by annealing at high temperature. By optical lithography and chemical etching, membranes are formed and then SiN is deposited. b) Scanning electron micrograph (SEM) of SOI membranes before SiN deposition. c) SEM of a strained SOI membrane with SiN on top. d) Photoluminescence spectra from an ensemble of G-centers as a function of the membrane size.
Research highlight
29/02/2024

Strain Engineering of the Electronic States of Silicon-Based Quantum Emitters

In a recent publication appeared on Advanced Optical Materials, scientists from an European collaboration led by prof. F...

Photon-based Quantum Research
Left: ensemble of single photon emitters originating from moiré excitons formed by electrons and holes confined in different 2D crystals. Center: signature of moiré exciton delocalisation induced by temperature as deduced by the rate of exciton increase with potential population. Right: signature of moiré exciton delocalisation induced by temperature as deduced by the exciton magnetic moment.
Research highlight
20/02/2024

Moiré exciton localisation-to-delocalisation transition

The large interest of scientists for 2D crystals regards them not only as standing alone lattices, but also when combine...

Photon-based Quantum Research
Stark effect: scheme of the quantum dot source and energy diagram of the emission process
Research highlight
25/12/2023

Faster, brighter, ever more entangled: how far can we push quantum-dot emitters?

Long from being solely an argument for physical paradoxes, entangled photons are now investigated as a basic resource fo...

Photon-based Complete System Quantum Research
Experimental scheme for quantum interrogation and internal structure of the integrated optical circuit. Picture of the reconfigurable chip.
Research highlight
28/11/2023

How to certify the quantumness of programmable photonic processors

In a recent publication in the journal Science Advances, scientists from Italy and Portugal demonstrate novel techniques...

Photon-based Complete System Quantum Research